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THS4281 Status: ACTIVE

Very Low-Power High Speed Rail-To-Rail Input/Output Voltage Feedback Operational Amplifier


      
         
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 THS4281
Iq per channel(Max)(mA)1  
Slew Rate(Typ)(V/us)35  
Rail-RailIn, Out  
Io(Typ)(mA)30  
Vs(Min)(V)2.7  
Vs(Max)(V)15  
Number of Channels1  
Pin/Package5SOT-23, 8MSOP, 8SOIC  
Acl, min stable gain(V/V)1  
BW @ Acl(MHz)90  
Diff Gain(%)0.11  
Diff Phase(deg)0.11  
Vio(Max)(mV)3.5  
THD (Fc=1 MHz)(Typ)(dB)-67  
Settling Time (0.1%)(Typ)(ns)78  
Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius)7  
Available ChannelsS  
Vn at Flatband(Typ)(nV/rtHz)12.5  
Approx. Price (US$) 0.95 | 1ku  
Iib(Max)(nA)1000  
Noninverting Input Current Noise(pA/rtHz)1.5  
2nd Harmonic(dBc)52  
3rd Harmonic(dBc)52  
@ Mhz1  
BW @ G=+2(MHz)40  
0.1 dB BW Flatness(MHz)20  
Operating Temp Range(Celsius)-40 to 85  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • SN10501: Low-Distortion High-Speed Rail-to-Rail Output Operational Amplifiers
  • OPA2830: Dual, Low-Power, Single-Supply Wideband Operational Amplifier
  • OPA830: Low-Power, Single-Supply Operational Amplifier
  • TPS73701: Single Output LDO, 1A, Adj. (1.2 to 5.0V), Reverse Current Protection

Product Information

Features

  • Very Low Quiescent Current: 750 µA (at 5 V)
  • Rail-to-Rail Input and Output:
    • Common-Mode Input Voltage Extends 400 mV Beyond the Rails
    • Output Swings Within 150 mV From the Rails
  • Wide –3 dB Bandwidth at 5 V:
    • 90-MHz @ Gain = +1, 40 MHz @ Gain = +2
  • High Slew Rate: 35 V/µs
  • Fast Settling Time (2-V Step):
    • 78 ns to 0.1%
    • 150 ns to 0.01%
  • Low Distortion @ Gain = +2, VO = 2-Vpp, 5 V:
    • –91 dBc at 100 kHz, –67 dBc at 1 MHz
  • Input Offset Voltage: 2.5 mV (Max at 25°C)
  • Output Current >30 mA (10- Load, 5 V)
  • Low Voltage Noise of 12.5 nV/Hz
  • Supply Voltages: +2.7 V, 3 V, +5 V, ±5 V, +15 V
  • Packages: SOT-23, MSOP, and SOIC
  • APPLICATIONS
    • Portable/Battery-Powered Applications
    • High Channel Count Systems
    • ADC Buffer
    • Active Filters
    • Current Sensing

FilterPro is a trademark of Texas Instruments.

Description

Fabricated using the BiCom-II process, the THS4281 is a low-power, rail-to-rail input and output voltage-feedback operational amplifier designed to operate over a wide power supply range of 2.7-V to 15-V single supply, and ±1.35-V to ±7.5-V dual supply. Consuming only 750 µA with a unity gain bandwidth of 90 MHz and a high 35-V/µs slew rate, the THS4281 allows portable or other power-sensitive applications to realize high performance with minimal power. To ensure long battery life in portable applications, the quiescent current is trimmed to be less than 900 µA at 25°C, and 1 mA from –40°C to 85°C.

The THS4281 is a true single-supply amplifier with a specified common-mode input range of 400 mV beyond the rails. This allows for high-side current sensing applications without phase reversal concerns. Its output swings to within 40 mV from the rails with 10-k loads.

The THS4281 has a good 0.1% settling time of 78 ns, and 0.01% settling time of 150 ns. The low THD of –87 dBc at 100 kHz, coupled with a maximum offset voltage of less than 2.5 mV, makes the THS4281 a good match for high-resolution ADCs sampling less than 2 MSPS.

The THS4281 is offered in a space-saving SOT-23-5 package, a small MSOP-8 package, and the industry standard SOIC-8 package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
THS4281DACTIVE-40 to 851.05 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
THS4281DBVRACTIVE-40 to 850.95 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
THS4281DBVRG4ACTIVE-40 to 850.95 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
THS4281DBVTACTIVE-40 to 851.05 | 1kuSOT-23 (DBV) | 5 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
THS4281DBVTG4ACTIVE-40 to 851.05 | 1kuSOT-23 (DBV) | 5 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
THS4281DG4ACTIVE-40 to 851.05 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
THS4281DGKACTIVE-40 to 851.05 | 1kuMSOP (DGK) | 8 View 80 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
THS4281DGKG4ACTIVE-40 to 851.05 | 1kuMSOP (DGK) | 8 View 80 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
THS4281DGKRACTIVE-40 to 850.95 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
THS4281DGKRG4ACTIVE-40 to 850.95 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
THS4281DRACTIVE-40 to 850.95 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
THS4281DRG4ACTIVE-40 to 850.95 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:39 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksTHS4281D
AmericasAvnet 75
Newark 386
Rochester Electronics >1k
AsiaFarnell Asia 224
EuropeAvnet-SILICA 25
Farnell 214
WorldwideDigiKey 365
Mouser Electronics 5
TI Lead Time*: 20 WeeksTHS4281DBVR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTHS4281DBVRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTHS4281DBVT
AmericasNewark 13
Rochester Electronics 70
AsiaWPI 124
EuropeAvnet-SILICA 155
WorldwideDigiKey 9
Mouser Electronics 181
TI Lead Time*: 20 WeeksTHS4281DBVTG4
WorldwideDigiKey  Available
Mouser Electronics 61
TI Lead Time*: 4 WeeksTHS4281DG4
EuropeEBV Elektronik 38
WorldwideDigiKey  Available
TI Lead Time*: 1 WeekTHS4281DGK
AmericasRochester Electronics >1k
EuropeAvnet-SILICA 250
WorldwideDigiKey 312
Mouser Electronics 275
TI Lead Time*: 1 WeekTHS4281DGKG4
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksTHS4281DGKR
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksTHS4281DGKRG4
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksTHS4281DR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksTHS4281DRG4
WorldwideDigiKey  Available
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
THS4281D RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DBVR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DBVRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DBVT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DBVTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DGK RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DGKG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DGKR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DGKRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
THS4281DRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for THS4281 Help

Datasheet

Application Notes

Tools & Software

NamePart # Company Tool / Software Type
Fully Differential Amplifier Component CalculatorFULLDIFFAMP-CALCTexas InstrumentsCalculation Utilities
Voltage Divider Determines A Set of Resistors for a Voltage DividerVOLT-DIVIDER-CALCTexas InstrumentsCalculation Utilities
THS4281 Evaluation ModuleTHS4281EVMTexas InstrumentsDevelopment Boards/EVMs
SPICE-Based Analog Simulation ProgramTINA-TITexas InstrumentsSimulators
MDACBufferPro(TM) Output Buffer Amplifier Selection ToolMDACBUFFERPRO Texas Instruments Application Software 
Active Filter Design ApplicationFILTERPRO Texas Instruments Application Software 

Simulation Models

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
SN10501 Low-Distortion High-Speed Rail-to-Rail Output Operational Amplifiers HIGH SPEED AMPLIFIER-RAIL TO RAIL TI customers also evaluated this product.
OPA2830 Dual, Low-Power, Single-Supply Wideband Operational Amplifier HIGH SPEED AMPLIFIER-RAIL TO RAIL TI customers also evaluated this product.
OPA830 Low-Power, Single-Supply Operational Amplifier HIGH SPEED AMPLIFIER-RAIL TO RAIL TI customers also evaluated this product.
TPS73701 Single Output LDO, 1A, Adj. (1.2 to 5.0V), Reverse Current Protection LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.

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